OTHER COMPREHENSIVE INCOME (LOSS) (Details) - Summary of Other Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013
Summary of Other Comprehensive Income [Abstract]
Foreign currency translation adjustments	$ 1,224	$ (5,924)	$ (1,913)	$ (2,921)
Foreign currency translation adjustments	1,224	(5,924)	(1,913)	(2,921)
Pension and other defined benefit plans	1,698	845	2,191	7,304
Pension and other defined benefit plans	(599)	(356)	(776)	(2,955)
Pension and other defined benefit plans	1,099	489	1,415	4,349
Gain on cash flow hedge		171		171
Gain on cash flow hedge		171		171
Total other comprehensive income (loss)	2,922	(4,908)	278	4,554
Total other comprehensive income (loss)	(599)	(356)	(776)	(2,955)
Total other comprehensive income (loss)	$ 2,323	$ (5,264)	$ (498)	$ 1,599